China's Bu reaches quarterfinals of the Hangzhou Tennis Open

HANGZHOU, Sept. 20 (Xinhua) -- Promising young Chinese player Bu Yunchaokete advanced to the quarterfinals of an ATP Tour event for the first time after a stunning upset of second-seeded Russian Karen Khachanov, securing a 2-1 victory in the second round of the ATP 250 Hangzhou Tennis Open on Friday.

Bu began the first set trailing 1-3 but showed great resilience, pushing the set into a tie-break, in which he wo